Hi, all. I am using the newest version and 0123beta. when I tried to make a simple image, I found strange things. I guess they might be bugs.


1. Trace
I drew a simple image and then it should have disappeared by time pass, but It doesn't perfectly make clear background image. I mean I could see traces like this.

http://www.digitypo.com/data/3.gif

However, when I use OPENGL, it is disappeared.


2. a bug for window size?
I put bigger than 300*300 for size of window, but it sometimes makes smaller than 300*300 when I use OPENGL.

http://www.digitypo.com/data/1.gif


3. when I use OPENGL, I can see a big grey noise and then never disappeared like this.

http://www.digitypo.com/data/2.gif



Here is the code!

import processing.opengl.*;

Particle ptcl;

void setup()
{
 size(400, 400, OPENGL);
 //frameRate(30);
 noStroke();
 
 ptcl = new Particle();
}

void draw()
{
 //background(255, 255, 255);
 fill(0, 0, 0, 10);
 rect(0, 0, width, height);
 
 ptcl.Update();
 ptcl.Draw();
}


class Particle
{
 float x, y;
 float vx, vy;
 float dt;
 float radius;
 //float cr, cg, cb;
 //float ch, cs, cb;
 
 Particle()
 {
   x = random(width);
   y = random(height);
   vx = 0;
   vy = 0;
   dt = 0.01 + 0.04 * random(1);
   radius = 20 + random(20);
 }
 
 void Update()
 {
   vx += mouseX - x;
   vy += mouseY - y;
   x += vx * dt;
   y += vy * dt;
   vx *= 0.9;
   vy *= 0.9;
 }
 
 void Draw()
 {
   //stroke(255, 0, 0);
   fill(100, 20, 40, 200);
   ellipse(x, y, radius, radius);
 }
}

Thx. I have done something for those. I fixed some and haven't fixed some. anyway, thanks a lot. fry!